Snuffer



Jan. 29, 1929. 1,700,564

D. E. EILAR SNUFFER Filed Jan. 21, 1927 riga; Il

ildp." I muil* Patented dano 29, i929.

DORAE. EILAR, 0F Bonden, TEXAS, Assrenon 'ro JOHN n.- 'yvEL'rolm or BOWLING GREEN, orf-11o.

i SNUFFER.

Application filed January 21, 1927. Serial 170,162,552.

whereby a casing head may be opened` at the top, and, at the same time, a dangerous outflow of gas will be prevented.

It is within the province of the disclosure to ,improve generally and to enh ancel the utility of devices of that type to which the invention Vappertains.

With the above and other objects in view which will. appear as the description proceeds, the invention resides in the combination and arrangement of'parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the `scope of what is claimed, without departing from the spirit of the invention.

In the drawings Figure 1 shows inlongitudinal section, a device constructed in accordance with the invention;

`Figure 2 is a top plan;

Figure 3 is a vertical section taken on the line 8 3 of Figure 2;

Figure 4 is a sectional view ification.

`rlhe numeral 1 marks, generally, a casing head for a well, the head 1 including a tubushowing a mod- Y Y lar body 2 having` a top 3 and a frusto conical bottom 4, the bottom 4 having a nipple 5 which is internally threaded as at 6, or constructed otherwise, so'that the well casing may be attached thereto. casing head is supplied with an opening that may be in the form of a tubular member 7 mounted interu'iediate its ends in the top 3,

' the tubular member 7 being threaded at 8, or

constructed otherwise, so that a closure (not shown)r may be assembled therewith. The body 2 of the casing head 1 is provided near to its upper end with lateral outlets 9, through which the product of the well flows.

At this point, the description of the invention protably may be suspended, in order to make manifest the particular problem with which this invention proposes to deal.

When the tubular member 7 is opened, as shown in the drawings, in order to permit op- 'Ihe top 3 of theerators to work in thewell, poisonous gases, existing asa by-product of thewell, or otherwise, often rush out, upwardly, through the `member 7, the operatorsof the well being Aprostrated or even killed, 1n some instances.

The structure hereinafter described` oper'- ates in such a way that, even though the tubular member 7 may be opened at its upperend, .as shown 1n the draw1ngs,no gases will flow` therethrough. Having that desirable result in mind, I provide the body 2, near to its upper end, with inlets 10, of which there may be any desired number. By way of the inlets 10, steam, air, gas, or any other fluid under pressure may be introduced into the casing head -1. A conical apron 11 connects they lower end of the tubular member 7 with the top f3 of the body 2. 'A conical wall 12 is located below the apron ,11 ,and is spaced vertically therefrom, the upper edge of the wall 12 being connected to thetubular` body 2,v vbelow the' inlets 10, as shown in Figure 1, and

above the outlets 9, as shown in Figure 3. e

The conical wall 12 has an aperture 25, about which `is located a depending tubular extension 14. The space between the. wall 12 and the apronl 11v constitutes a chamber 15, and it is into this chamber that iiuid'pressure,

i Y derived from the inlets 10 is discharged, the

fluid'under pressure passing downwardly through the chamber 15 and into or through the tubular` extension 14. There is an in.

lverted conical baille 1'6 on the lower end of the n extension 14, and other baffles` 17 are located below the baffle 16, in spaced relation to each other, the battles 16 and 17 being connected together, and to the bottom 4, in any suitable f way, for instance by means of rods 18. All of the baffles 16 and 17 have openings 28 which are alined with the extension 14 and with the tubular member 7, so that a person can work 'downwardly through the parts 7, 14, 16, 17 and 5, into the wellcasing.

In practical operation, the gas rising in the well is received within the body 2 and is carried laterally, to some extent, by the baiiies 17 and 16. In order, however, to prevent the gas from flowing upwardly through the parts 14 and 7, the `pressure is increased in the inlets 10, the chamber 15, and inthe extension 14, so as to olf-set and backup the gas,-the

' gas thereby being prevented from flowing upwardly through the extension 14 and the member 7. The gas, thus, is constrained tol move upwardly beneath the Wall 12 and out'- to time and, therefore, in practice, sufficient pressure is delivered through the inlets l() to overcome the pressure of gas in the well, and, generally, the pressure delivered at lv into the easing not merely establishes equi- -librium with respect to the gas pressure in the well, but, really, overcomes that pressure, the steam, air, gas, or other fluid under pressure flowing` downwardly through the extension 14 and away through the outlets l0, with the gas.

n Figure 4 the flow line pipe is marked by the numeral 19l and into it extends a pipe 20, held in place by nuts 24, the pipe Q0 having'a rectangularly disposedV arm 2l carry-v ing a nozzle 22 within which is located a spreader 23. This instrumentality may be used when it is desired to .speed up the How of gas or oil, by steam or other fluid under pressure, before the gas or oil enters the body 2 by way o the nipple 5.

Vhat is claimed is 1. A casing head having an opening in its top, and providedl with an outlet, there being a wallinthe casing and separating the openingV `from the outlet, the wall having an aperture alined with the opening7 and' means for admitting fluid-pressure to the casing, upon the .same side of the wall as the opening, to prevent gas from passing upwardly through the aperture and the opening.

2. A. casing head provided in its top with an inwardly extended tubular member and provided with a transverse wall having a tubular extension alined with the tubular member, the casing being provided with an outlet located on one lside of the wall, and with a {luid-pressure inlet located on the opposite side of the wall andv discharging about the tubular member. i

3. A casing head having an opening in its top and provided with an outlet, there being a wall in the casing and sepa y'ating the opening` VYfrom the outlet, and a plurality of bafiles in the casing below Vthe wall, the wall and the .ballles having'apertures alined with the opening. l

et. The combination with a casing head having a tubular member in its top, and having a lateral outlet, of an inclined Huid-pressure y .pipe discharging into the tubular member at an acute angle to the axis thereof, the tubular member beingl provided intermediate its ends with a nozzle discharging into the outlet.

In testimony .that I claim the foregoing as my own, I have hereto athxed my signature.

DORA E. EILAR. 

